<template>
  <div>
    <!-- 搜索结果页-头部导航 -->
    <div class="search-result-container">
      <!-- 点击实现后退效果 -->
      <van-nav-bar title="搜索结果" left-arrow @click-left="$router.go(-1)" fixed />
    </div>
    <!-- 文章列表 -->
    <div>
      <van-list v-model="loading" :finished="finished" finished-text="没有更多了" @load="onLoad" :immediate-check="false">
        <ArticleItem v-for="obj in articleList" :key="obj.art_id" :artItem="obj" :isShow="false"  @click.native="itemClickFn(obj.art_id)"> </ArticleItem>
      </van-list>
    </div>
  </div>
</template>

<script>
import { searchResultAPI } from '@/api'
import ArticleItem from '@/components/ArticleItem.vue'
import { timeAgo } from '@/utils/date.js'
export default {
  name: 'SearchResult',
  data () {
    return {
      page: 1, // 页码
      articleList: [], // 搜索文章列表
      loading: false, // 加载状态
      finished: false
    }
  },
  components: {
    ArticleItem
  },
  async created () {
    const res = await searchResultAPI({
      page: this.page,
      q: this.$route.params.kw
    })
    this.articleList = res.data.data.results
  },
  methods: {
    async onLoad () {
      if (this.articleList.length > 0) {
        this.page++
        const res = await searchResultAPI({
          page: this.page,
          q: this.$route.params.kw
        })

        if (res.data.data.results.length === 0) {
          // 没有更多数据
          this.finished = true
          return
        }
        // 数据预处理
        res.data.data.results.forEach((obj) => {
          obj.pubdate = timeAgo(obj.pubdate)
        })
        this.articleList = [...this.articleList, ...res.data.data.results]

        this.loading = false
      }
    },
    //  跳转到详情
    itemClickFn (id) {
      this.$router.push({
        path: `/detail?art_id=${id}`
      })
    }
  }
}
</script>

<style lang="less" scoped>
.search-result-container {
  padding-top: 46px;
}
</style>
